Sprayer closure



Oct. 20, 1925.

H. E. BRANDT SPRAYER CLOSURE Filed Aug. 28. 1924 Patented Oct. 20, 1925.

UNITED STATES; PATENT OFFICE.

HENRY E. BRANDT, OF NORTH ST. PAUL, MINNESOTA, ASSIGNORITO DOBBINS MANU- FACTURING C01Vl1E'A.'l.\TY,k OF NORTH ST. PAULLMINNESOTA, A CORPORATION 0F SOUTH DAKOTA.

SPRAYER oLosUR.

Application filed August 2'8, 1924. Serial No. 734,652.

To all whom t may concern.'

' Be it known that I, HENRY E.B RA NDT, a citizen of the United States, res1d1ng` at North St. Paul, in the county of Ramsey and- State of Minnesota, have invented certain new and useful Improvementsv in a Sprayer Closure; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains'to make and use the same. 4

This invention relates to a sprayer land particularly to a closure structure for said'y sprayer. While the invention might be applicable to different types of sprayersit is particularly designed for a sprayer having a liquid receptacle anda pump cylinder eX- tending thereinto, which pump cylinder,to gether with the pump plunger rod is removable to permit placing the liquid in the receptacle.

It is an object of this invention to provide a very simple and eflicient closure device for such a sprayer and one which will require no machine finishing of parts.

It is also an object of the invention to provide a closure structure for a sprayer of the type mentioned having few parts which are ruggedly and compactly arranged for easy and rapid operation.

It is a further object of the invention to provide such a sprayer closure comprising aring secured to the receptaclel about the pump cylinder o ening therethrough, which ring has a divide flange thereon s aced from the receptacle, which flange is ormed as a pair of half threads, together with a cap adapted to extend over the said opening having a flange also formed -as a pair ofv half threads adapted to engage the half threads on saidring.

It is more specifically an object'of the invention to provide such a Vstructure as set forth in the previous para raph, in which 'the receptacle has an upstan ing ring formed thereon about the opening therethrough, which issurmounted by a gasket engaged by a flange on the pump cylinder, said last mentione ring, gasket and pump cylinder being surrounded by said cap, said cap acting to draw said pump c linder a-nd gasket down on said last mentioned ring.

These and other objects and advantages of the invention will be fullyset forth in the' following description made in. connection and other portions shown in vertical section;

Fig. 2 is a. viewin front elevation of some of the parts shown in Fig. 1 in separated position; i

Fig. 3 is a top plan 'view of a cap member used;

the receptacle; and y r Fig. 5 is a horizontal section taken on the line 5-5 of Fig. 2, as indicated by the arrows. v

While the invention, as stated, is applicable to different types of sprayers, in the embodiment of the invention illustrated, the same is shown as applied to a sprayer having a vertically disposed cylindrical recepta cle 6 adapted to contain the liquid to be sprayed, which receptacle has a top wall 7. The wall 7 has a central circular opening therein about which is punched or struck up an u standing inwardly turned bead or ring 8. urrounding the bead 8 and secured to the wall 7 by circumferentially spaced rivets, is a ring 9 having an inwardly disposed flange spaced from the wall 7 and divided to form semi-circular portions 10 formed as helices or cam surfaces inclined in opposite directions and thus having their ends offset axially, said members thus constituting, in effect, half threads. The top of the beador ring 8 is surmounted by a gasket 11 of annular form and a pump cyllnder 12 disposed in the opening in wall 7 and substantially fitting the ring 8 has an outwardly directed flange overlyin gasket 11. A cap member 13 is provided formed of sheet metal having a cup-like portion surrounding the upper end 'of pump cylinder 12, the gasket 11 and the-ring 8, which ca has a laterally directed flange divided to orm semi-circular por tions 14 which are helically arranged or inclined in opposite directions, thus having their adjacent ends respectively offset axiall Said flange 14 thus forms, in effect, haif threads which are oppositely pitched. The cap 13 has a central opening through which passes the plunger rod 15 of the pump cylin- Figfl isa top plan view of a portion of der 12, which rod has at its upper end a hanoppositely disposed slots 18 through which.

the body portions of the ins 17 can extend and said slots have centiaenlarged portions through which the 'headed portions of the member 17 may extend, said head portions, however, not being movable through the end portions of the slots 18.

When assembled for operation, the lupper flanged end of the pump cylinder 12 is disposed, as shown in Figs. 1 and 2, the gasket 1l being ressed into the cap 13 so lthat it engages t e shoulder therein and is held in fixed position. The handle 16 is pushed downwardl with the heads of members 17 alined with the enlargements in slots 18 and is 'then turned to bring said heads out of alinement with said enlarge.

ment. lWhen flanges 14y and 10 are disengaged, the pump'cylinder 12, together with the rod 15 can be lifted out of the receptacle 6 by the handle 16. The spraying liquid will then be placed in the receptacle through the centralopening therein and the cylinder 12 with its rod 16 again placed in the receptacle. The gasket 11 then rests on the upper edge of the ring 8. The cap 13 is now placed with the ends of the flanges 14 substantiall, at the ends of the flanges 1U. The' ends o the flanges 14 are then entered by rotating'motion under the ends of the flanges 10` so that the latter overlie the former. The cap is now further. rotated by 'turning 'the handle 16, the pins 17 engaging 'the ends of slots 18 and the fianges 14 are moved under the flanges 10. Owing to the inclined or helical formation of flanges 10 and 14 this rotatable movement draws the cap 12 downwardly and the same presses downwardly on the flanged end of the pump cylinder "12 and presses the gasket 11 firmly against the upper edge of ring 8, thus tightl sealing the opening in receptacle 6.

hen it is again desired to lill or empty the container 6, the handle 16 is turned in the opposite direction when the pin 16 will engage the opposite ends of the respective slots 18 and the'flanges 14 will be turned 'from underI the flanges 10 so that the pump .cylinder again may be lifted out of the opening in receptacle 6. The receptacle 6 will thus be easily and quickly closed or' opened by turning movement of the handle 16.

.From the above description it is seen that applicant has provided a very simple, efficient and rugged closure structure for a sprayer. The ring 9,' as well as the cap 13 can be quickly formed by 'a' unching or pressing operation and no mac ine work is necessary therefor. The upstanding ring or bead 8 is also pressed up from the top Wall 7 of the receptacle and no machine work is necessary for this part. The ring 9 and receptale 7 are punched and thc rivets quickly inserted to secure these parts together. The entire structure, therefore, is formed Without any machine finishing and is made of strong sheet steel which will not easily be broken by 'any compact. The device has been amply demonstrated in actual practice and found to be very successful and efficient and the same merciall made and sold.

It wi of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts without departing from the scope of applicants invention, which, generally stated, consists in a'device capable of carrying out the objects above set forth, such as shown and described and defined in the appended claims. n

What is claimed is:

1. The combination with the wall of a sprayer receptacle having an opening there' through and an outwardly projecting ring about said opening, a gasket contacting saidy ring, a pump cylinder having a flange overlying said gasket, a substantially annular helical means on the exterior of said wall, and a cap having helical means thereon engaging said first named helical means and pump cylinder to draw the latter against said gasket.l

2. A sprayer closure 'structure having in combination, a receptacle having an opening through the wall thereof, a ring secured to the exterior of said receptacle about said opening having substantially semi-circular flanges spaced from said wall and oppositely inclined thereto, a cap having oppositely pitched helical flanges thereon adapted to surround said opening and rotatably to slide under saidfirst mentioned fianges to draw said cap toward said wall.

3. The structure set forth 'in claim 2, said Wall having an annular inturned bead about said opening, an annular gasket contacting said bead, and a pump cylinder disposed in said opening having a flange overlying said gasket, said gasket and flanged end of said cylinder/,being disposed in said cap.

4. Aiclosure structure for a sprayer receptacle having in combination, a cap having oppositely disposed and inclined helical semi-circular flanges with offset'ends and oppositely disposed and inclined semi-circular flanges secured to said receptacle also*- having offset ends and overhan'ging A,said

first mentioned flanges.

5. A closure structure for a sprayfn-having in cotbination, a receptacle having an opening rough the wall thereof, and' an inturned annular bead struck up from said,

Wall surrounding said opening, a gasket surmountingsaid bead, a-pump cylinder having means overlying said gasket, a `ring setacle4 adapted to contain the liquid to bey sprayed having an opening thereinto, and an annular member surrounding said opening, a pump cylinder disposed in said opening havin an outer extending flange at its upper en extending over said member, a gasket between said member and flange, a cap member enclosing said flange and gasket and surrounding said member having an outwardly extending flange formed as oppositely pitched half threads with their ends axially spaced, and an overhanging flange secured to the top of said receptacle formed as oppositely pitched half threads with their ends axially spaced whereby the flange on said ca can be entered under and rotated under said last mentioned flanges to draw said cap downwardly and tighten the same in said pump cylinder flange against said gasket.

7. The structure set forth in claim 6, said cap having oppositely disposed segmental slots in its top with enlargements therein, a plunger rod reciprocable in said cylinder and through the top of said cap, and a handle at the top of said rod having downwardly extending spaced headed projections thereon, said projections extending through said slots, the headed portions thereof being movable upwardly through said` enlargeine-nts but not through said slots.

8.- A sprayer closure structure having in combination, a liquid receptacle having an opening therethrough, a pump cylinder having a flange thereon disposed in said opening, a gasket below said flange, and means for drawing said flange downwardly against said gasket comprising a member engaging said flange and having oppositely disposed and inclined substantially semi-circular cam flanges thereon, and a flange member on said receptacle having oppositely disposed and inclined flanges'under which said first menj tioned flanges are adapted tobe turned.

9. A sprayer closure structure having in combination, a sheet metal receptacle having an opening in the wall thereof, and an inturned bead struck up about said opening, a gasket surmounting said bead, a pump .cylinder disposed in said opening and having a flange extending over sai gasket, a

sheet metal cap surroundmg said gasket and latter flange and contacting the latter having a laterally extending flange thereon divided and formed as oppositely pitched halfthreads, a ring secured to said receptacle and having a divided flange spaced from said receptacle wall and also formed as oppositely pitched half threads under which the flange on said cap is adapted to be turned to draw said cap downwardly and press said pump cylinder against said gasket.

10. The structure set forth in claim 9, said cap having a portion of slightly' enlarged diameter forming a shoulder against which the lower edge of said gasket seats.

11. The structure set forth in claim 9, a pist-on rod extending centrally through said cap and having a handle means detachably engaging said cap and rotating the same.

12. A closure structure for a sprayer having in, combination, helical flanges of circular shape substantially 180 degrees in extent overhanging the wall ofsaid sprayer at the exterior thereof, said wall having an opening therethrough surrounded by said flanges, and a cap secured to a pump cylinder, which cylinder is adapted to enter and be disposed in said opening, said cap having outstanding helical flanges circular in form and substantially 180 egrees in extent adapted to respectively pass under and engage said first mentioned flanges to draw said cap into sealing relation with said wall.

13. A closure structure for a sprayerhaving in combination a receptacle having an opening therethrough, a substantially annular helical flange carried by and spaced from the top of said receptacle and surrounding said opening, and a cap having a substantially annular helical flange adapted to engage under said firstmentioned helical flange and be rotated relatively thereto through substantially 180 degrees to close said opening. l

14. The structure set forth in claim 13, the helical means on said receptacle being split substantially at the ends of the diameter thereof and portions thereof adjacent each of said splits being offset,'the helical means on said cap also being4 split substantially at the ends'of the diameter thereof and the portions adjacent the splits thereof being offset.

In testimony whereof I affix my signature.v

HENRY E. BRANDT. 

